Irving Public Library

FREE TX CDL Air Brakes Marathon 2019

Ready for a challenge? This Texas CDL Air Brakes Marathon is a lengthy practice test that contains a mix of all 119 questions that we have available for this TX endorsement. If you select a wrong answer, we’ll remember that question and will display it to you again at the very end of the Marathon until you’ve answered that question correctly. In other words, the Marathon will cycle through your missed questions until you answer each one correctly. You must make a 100% to pass. We suggest you attempt this one after you have practiced the state’s “regular” tests, but before the “Exam”. It might take some time, but you can do this!